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Posted to hdfs-dev@hadoop.apache.org by "Kevin Risden (JIRA)" <ji...@apache.org> on 2019/02/01 13:09:00 UTC
[jira] [Created] (HDFS-14251) BlockPoolSlice ForkJoinPool
introduced by HDFS-13768 breaks under Java SecurityManager
Kevin Risden created HDFS-14251:
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Summary: BlockPoolSlice ForkJoinPool introduced by HDFS-13768 breaks under Java SecurityManager
Key: HDFS-14251
URL: https://issues.apache.org/jira/browse/HDFS-14251
Project: Hadoop HDFS
Issue Type: Bug
Affects Versions: 3.2.0, 2.10.0, 3.1.2
Reporter: Kevin Risden
HDFS-13768 introduced ForkJoinPool to improve performance of BlockPoolSlice. The created ForkJoinPool doesn't pass in a custom thread factory and by default the thread factory prevents all privileges under the Java SecurityManager.
This broke when integrating Hadoop 3.2.0 with Apache Solr in SOLR-9515.
It isn't clear that the ForkJoinPool is necessary when a regular normal executor could work instead?
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